Mathematics
Senior High
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どこが間違っていますか?💦
次の数列の初項から第n項までの和を求めよ。
1, 1+2, 1+2+4, 1+2+4+8,
A6=1+2+4+ 2. 14
—₁ (2-1) = 2²²11 = 1
2041
29+! -|-~
......
2 (2-1).***
12-1
02-1
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ありがとうございます!😭